<header>
  <h3>Scheme</h3>
  <form id="theme-switcher">
    <div>
      <input checked type="radio" id="auto" name="theme" value="auto">
      <label for="auto">Auto</label>
    </div>
    <div>
      <input type="radio" id="light" name="theme" value="light">
      <label for="light">Light</label>
    </div>
    <div>
      <input type="radio" id="dark" name="theme" value="dark">
      <label for="dark">Dark</label>
    </div>
    <div>
      <input type="radio" id="dim" name="theme" value="dim">
      <label for="dim">Dim</label>
    </div>
  </form>
</header>

<main>
  <section>
    <div class="surface-samples">
      <div class="surface1 rad-shadow">1</div>
      <div class="surface2 rad-shadow">2</div>
      <div class="surface3 rad-shadow">3</div>
      <div class="surface4 rad-shadow">4</div>
    </div>
  </section>

  <section>
    <div class="text-samples">
      <h1 class="text1">
        <span class="swatch brand rad-shadow"></span>
        Brand
      </h1>
      <h1 class="text1">
        <span class="swatch text1 rad-shadow"></span>
        Text Color 1
      </h1>
      <h1 class="text2">
        <span class="swatch text2 rad-shadow"></span>
        Text Color 2
      </h1>
      <br>
      <p class="text1">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
      <p class="text2">Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
    </div>
  </section>
</main>